Connecting-rod-babbitting device.



A. VV, SPHENGER il 0, A. BREMER.

CONNECTING Ron swan-ma www@ APPUCTON FLED MAY 19H3. VQQQU; Pncu'te Feb. 1 8, N19.

2 SHEETS--SHEET L CONNECTING RGD SABBIITING DEVICE.

APPLICATION FILED MAYG. IQIB.

eb. I8, 1919.

2 SHEETS-SHEET 2.

TWEE@ @T llllElllil ALFEEI? W. SPRENGEB, 'MD OTTO A. BREMER'UF BUItLINGTil, IUWA..

CON N ECTN GRD-BABB1TTNG DEVICE.

Specification or Letters atent.

Patented Feb. le, llllliil.

Application filed Hey 19152. eriel No. 232386.

of 'automobile en fines, and has for its object; i

the production or a device of tlnis character through tbe'medinin of which et connecting; rod or the like may be babbitted or rebsb bitted with. esse and eiipedition by one, whether experienced ornct in Work oi this nature. l

A further object is vthe production of e, device as mentioned, which will. be ci' dursble and economical construction, sind whereby un automobileowner may, himself, with little trou-ole and with practically no loss of time, e'ect the `rebebbitting ofi 'his connect ing rods when necessary.

Other objects will appear hereinafter.

The invention consists vin the combina.- tions and arrangements of parts hereinafter described and claimed.

The invention Will be best understood by v reference to the accom 'en in@ drewin s forming c port o this specification, and in which,

Figure l, is e erspective view of n bebbitting device ein dying tbe invention, Fig. 2, e top 'plan view thereof, Fig. 3, a, horizontal section through. tbc device as seen in Figs. 1 and 2, Fig. et, a bottom plan View of the lower bese member included in the construction,

Fig. 5, a section teken. on substantially line 5 5 of Fig. 2,

Fig. 6, a section illustrating the method of detachment of the pouring funnel ot the device after the pouring ci the babbitt has taken place, K

Fig. '7, e side elevation of employed in the construction, Fig. 8, a section taken on Fig. 7,

Fig. 9, a top plan view of the pouring funnel, and f Fig. 1U, .e top plan view of the lower clou the mandrel line 8-8 of it sure used in connection with the device.l

The preferred form. of construction, es

` bolts ifi.

illustrated in the drawings, is designed for use especially in the bsrbbitting of connecting rods of tbe type consisting of a, body 11 Vend n detachable end piece l2, the opening 1B to be bebbitted being located centrally between the ports il Lind l2. Seid parts il and l2 are detacbnbly connected by bolts il and copernting nuts l5.

The bebbitting device forming the subject matter or" this application comprises e mandrel consisting; of two similar 'parte 16, encli semi-cylindricel in forni, the parts lli being of such size het if the sinne 'were to be assembled in contact with encb other, a complete cylinder would be formed of n, diameter the same :is teint of elicit or other device with which the connecting rod is adapted to engage when in use. "llie parts l@ of tbe mandrel are, however, Sepe rated sliglitlfv b v s.. plete l?, the ports i6 :ind l? being rigidly secured together by screws or other sui'tiible fastening; devices. The plete l? projects laterally from the members 16 forming Vleemos or ears 18, which ore adapted to engage between tbe parts ll end l2 of' the conmectirni7 rod in the babbitting operation, seid leaves l@ being perforated in Fig. 3. Seid mandrel will beheld in. central position in sind opening by tbe --llie lower reduced end portion. oit. the

menclrel is adcptedfto engage en annular closure member l9`witb the under side of tbe connecting rod resting1 upon the upper side of the member 19, as clearly' seen in Fig. 5.

withlaterally projecting lugs 23,4 adapted, to loosely engage with inwardly facing,"

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notches or channels 2li formed in the lower v ends of the frame 22. Engagement of the member 2l Witiithe channels 2li is elected by rotating the 'member 2l. in, e counter EMB clockwise direction, such rotation being limited by stops formed at the under sides ot lues Provided for engagement with the upper side oit the connecting rod is a pouring funnel 2G, having inwardly projecting pins 27 which are adapted to engage with the enlarged upper end portion of' the mandrel to hold said pouring funnel centrally with refereuce' thereto. The pouringA funnel is pressed .into operative relation with the connecting rod by means of a screw 23 threaded centrally in the upper portion of frame 22, the inner end of said screw carrying' a resilient cross-piece 29 adapted to engage with the upper side ot' said pouring' funnel, as clearly Seen in Fig'. I. Said screw and spring', when thus engaged, are adapted to securelyv hold the parts in operative relation with eachother, as seen in Fig. 5.

W ith the construction set forth then, it will be seen that in the babbitting operation it is only necessary to separate the parts of the connecting* rod, and, where it is a job of rebabbitting. to chip out or otherwise remove the old babbittinp'. It is desirable next to tin the inner surfaces of the connect ing); rod or to drill holes in the same, in order to anchor the metal therein. The parts are then preferably washed with gasolene. This having been done, the mandrel is inserted between the parts of the connectingrod and securely fastened in position by the bolts 14 and nuts 15, as above described. The part lil is then placed ou the base member 21 and the lower reduced end of' the mandrel inserted into the opening in member 19. The pouring funnel 26 is then placed over the upper end of the mandrel and brought to rest upon the upper side or edge of the connecting rod.

The parts as now assembled, are preferably heated in a gas stove flame, or with a lgrasolene blow torch to insure easy flowing ot' the molten Babbitt metal and to prevent chilling of the metal before the narrow space between the` mandrel and inside of' the rod is filled up.

The frame 22 is now arranged in operl ative relation with the base 'member Q1, b v turning said frame member in a clockwise direction until the same engages with the stops 25. The parts are then securely clamped together through manipulation ot the thumb screw 28. To insure against leakage through the joints between the rod and the parts 19 and 2G, two or three turns of cord as seen at 30 are. preferably provided at these points, as clearly seen in Figl. Cord is preferably used for this purpose, although fire clay or other suitable sealing material may belemployed if desired.

The metal in a. molten condition is -then poured rapidly -into the pouring tunnel at either side of the rod directly above the partition member 17, the metal being poured at this place in order to insure a like amount of metal entering both sides of the rod at the same time.

The upper side of the member 19 is formed 70 with an annular groove 31, and the upper end portion of the mandrel is enlarged and formed with a curved shoulder 32 in order to effect the flowing of the metal over the ends of the connecting rod journal or bearing', as clearly seen in Fig. 5. j

When the metal has become hard, the frame 22 is removed from the base member 21, and the latter and lower closure member. 19 are removed from the connecting rod, as 30 well as the cord or sealing material 30. The pouring funnel 26 is then placed upon two supports 33, as for instance the jaws of a vise, as seen in Fig. 6, with the lower flat ,f side of the funnel resting upon the upper sides of the members 33, whereupon the up` per end of the mandrel is struck a sharp blow with a hammer or the like, to separate' the metal forming the bearing),1 from the sul plus metal in the pouring funnel. In order 90 to facilitate the severing of. this surplus'v metal from the -metal forming the bearing, the pouring funnel is formed with an annular internal shoulder 34, which is positioned in a plane below the annular shoulder 3Q 55 of the mandrel, so that when the upper end of the mandrel is struck a. sharp blow as mentioned, shoulders 3Q and 34 will coperate in effecting a sort' of shearimgr action which will insure a comparatively clean-eut arpund the upper edge of the connecting ro lAfter this has been done, the nuts and bolts are removed and the parts of the counecting rod.y separated by simply lightly 1054l tapping` the same with a hammer, the mandrel being separated at the same time. The sharp 'corners of the 'babbitting metal at the inside of the joint of the rod are then chamfered olf and the rod is ready to assemble on 11o the crank shaft of the motoi` without any additional scraping or fitting. The man drel being` of just the right diameter, the. bearing. when assembled, will be just the right size for the crank shaft. engaged 115.

thereby.

While we have illustrated and described the preferred form of construction for carA rying our invention into effect. this is ca pable of variation and modification withouttions and modifications as come within the 1355 geni-,ess

'ir the like, having an opening therethrough, said rod being divided at said opening into two parts and there being securing devices connecting said parts, of means for babbitting said opening, comprising a mandrel of less diameter than said opening and adapt ed to be inserted tliereinto; laterally projecting leaves on said mandrel, interposed between said parts and having openings engaged by said securing devices for.holding said mandrel central in said opening to form a space around said mandrel; means for closing one end of said space; and means for directing the supply of molten metal into said space, substantially as described.

2. The combination with a connecting rod or the like, having an opening therethrough, said rod being divided at said opening into two parts and there being securing devices connecting said parts, of means for babbitting said opening comprising a mandrel of less diameter than said opening and adapted to be inserted thereinto; means for holding said mandrel central in said opening to form a space aroundsaid mandrel; a member for closing the lower end of said space; a funiiel for guiding the' molten metal into the upper end of said space; means for holding said member and funnel in operative relation with the connecting rod, comprising a support for" one of said elements; and means cooperating with said support for pressing the other element into operative position, substantially as described.

3. The 'combination with a connecting rod or the like, having an opening therethrough, said rod being divided at said opening into two parts, and there being securing devices connecting said parts, omeans for babbitting said opening, comprising a mandrel of less diameter than said opening and adapted to be inserted thereinto; means for holding said mandrel central in said opening, to form a space around said mandrel, a member -for closing the lower end. of said space; a 'funnel for guidingthe molten metal into the (upper end of said space; means for holdin' said member and funnel in operative relation with the connecting rod, comprising a support' for one of said elements; and a screw thr Iaded into said support for pressing the oth r element into operative position, substantially as described.^..,

4.. The combination with a connecting rod or: the like having an opening therethrough, said rod bein divided at said opening into two parts an there being securing devices connecting said parts, of means for babbitting said opening comprising a mandrel of less diameter than said opening and' ada ted to he inserted thereinto; means for hol ing said mandrel central in said opening to form a spacearound said mandrel; a member for closing the lower end of said space; a funnel for guiding the molten metal into the upper end of said space; means forV holdin said member and tunnel in operative re ation with the connecting rod, comprising a supor the like having an opening therethrough, A

said rod being divided at said opening into two parts, and there being securing devices connecting said parts, of means for babbitting said opening comprising a mandrel of less diameter than said opening and adapted to be inserted thereinto; means for holding p said mandrel central in said opening, to form a space around said mandrel; a pouring funnel for guiding the molten metal into said space; and opposing shearing edges on said mandrel vand funnel to facilitate severing of the surplus metal in said funnel, when cooled, from the metal formin the babbitt ing in the connecting rod, su stantially as described.

6. The combination with a connecting rod or the like having an opening therethrough, said rod being divided at said opening into two parts, and there being securing devices connecting said parts, oi? means for babbitting said. opening comprising a mandrel of less diameter than said opening and adapted to be inserted tlicrcinto; means for holding" said mandrel central in said opening, to form a space around said mandrel; a pouring funnel for guiding the molten metal into said space; and opposing annular shearing shoulders on said mandrel and funnel to4 facilitate severing of the surplus metal in. said funnehwhen cooled, from the metal forming the babbitting in the connecting rodi substantially as described.

7 The combination with a connecting rod or the like having au opening therethrough, said rod being divided at said opening into two parts, and there being securing devices connecting said parts, of means vl'or babbittlll) ingl said opening, comprising a mandrel of 'l less diameter than said opening and adapted to be inserted thereiiito; means for holding said mandrel central in said opening, to

fornvaspace around said mandrel; a funnel said rod being divided :lt Suid npr-ning into two parts :1nd there being securing (levures connecting Suid parts, of means for babbitting Suid opening compring a mandrel of less diameter than sind opening and adapted to be inSerted tliereinto; means 'for holding said mandrel central in said opening to form :i space around said mandrel; a member :Lrrzuiged to coperute with said mandrel at one endof said space; and opposing shearing edges on said mandrel and member to facilitate severing of the sui-plu. metal in seid member. wlwn eouled, from the metal forming tl'n` lmbbittmg in the connecting rod, Sub- Starntmlly :1S described.

In testimony whereof we have signed our names te tlns specification n1 the presence el two subscribing witnesses.

ALFRED Wl. SPRENGER. OTTO A. BRElNIER.

Witnesses:

J. BECKMAN, C. F. BUHMASTER. 

